12月4日,由中(zhong)国船舶集团公(gong)司所属上(shang)海(hai)外高桥造船有限公(gong)司建(jian)(jian)造的(de)CJ46型(xing)、CJ50型(xing)两座海(hai)上(shang)自(zi)升(sheng)式钻井(jing)(jing)平台交付运(yun)营(ying),这(zhei)是外高桥造船迄(qi)今为止交付运(yun)营(ying)的(de)第五、第六座不(bu)同型(xing)号(hao)的(de)自(zi)升(sheng)式钻井(jing)(jing)平台。CJ46型(xing)钻井(jing)(jing)平台型(xing)长(zhang)(zhang)65.25米,型(xing)宽62米,桩腿(tui)(tui)长(zhang)(zhang)度(du)147.4米,最大作(zuo)业(ye)(ye)水深375英(ying)尺(chi)(chi),空(kong)船重(zhong)(zhong)量(liang)(liang)13600吨,上(shang)层(ceng)建(jian)(jian)筑(zhu)可(ke)同时容纳120人居住;CJ50型(xing)钻井(jing)(jing)平台型(xing)长(zhang)(zhang)70米,型(xing)宽68米,桩腿(tui)(tui)长(zhang)(zhang)度(du)165米,最大作(zuo)业(ye)(ye)水深超过(guo)400英(ying)尺(chi)(chi),空(kong)船重(zhong)(zhong)量(liang)(liang)17189吨,上(shang)层(ceng)建(jian)(jian)筑(zhu)可(ke)同时容纳150人居住。两座平台均采用NOV钻井(jing)(jing)设备系统包,具备在(zai)恶劣(lie)海(hai)况(kuang)下作(zuo)业(ye)(ye)的(de)能力(li),综合性能处于行业(ye)(ye)领先水平。